US 12,253,939 B2
Electronic control unit, method, and storage medium of setting shared/dedicated area write limit based on life time consumption information
Tomohiro Takahashi, Kariya (JP); Kenshi Inotani, Nagakute (JP); and Norihide Kohmoto, Nisshin (JP)
Assigned to DENSO CORPORATION, Kariya (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by DENSO CORPORATION, Kariya (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Jun. 28, 2023, as Appl. No. 18/342,777.
Claims priority of application No. 2022-107791 (JP), filed on Jul. 4, 2022.
Prior Publication US 2024/0004589 A1, Jan. 4, 2024
Int. Cl. G06F 12/02 (2006.01)
CPC G06F 12/0246 (2013.01) [G06F 2212/7206 (2013.01)] 9 Claims
OG exemplary drawing
 
6. A use limit notification method performed in an electronic control unit including a storage that has a shared area capable of being shared and used by a plurality of unspecified applications and a dedicated area capable of being used by a predetermined specific application, the method comprising:
acquiring life time consumption information related to life time consumption of the storage;
storing a first threshold with respect to the life time consumption information and a second threshold higher than the first threshold;
determining that the life time consumption information has reached the first threshold;
setting a shared area write limit on data write to the shared area in response to a determination that the life time consumption information has reached the first threshold;
determining that the life time consumption information has reached the second threshold;
setting a dedicated area write limit on data write to the dedicated area in response to a determination that the life time consumption information has reached the second threshold; and
notifying an application using the storage of a use limit of the storage according to the shared area write limit or the dedicated area write limit.